引入Log4j
1. pom文件添加依赖
<!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end -->
2. 添加log4j.properties文件
# DEBUG,INFO,WARN,ERROR,FATAL LOG_LEVEL=DEBUG log4j.rootLogger=${LOG_LEVEL},CONSOLE,FILE log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.Encoding=utf-8 log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout #log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss} %C{8}@(%F:%L):%m%n log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss} %C{1}@(%F:%L):%m%n log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender log4j.appender.FILE.File=${catalina.base}/logs/quick4j.log log4j.appender.FILE.Encoding=utf-8 log4j.appender.FILE.DatePattern='.'yyyy-MM-dd log4j.appender.FILE.layout=org.apache.log4j.PatternLayout #log4j.appender.FILE.layout=org.apache.log4j.HTMLLayout log4j.appender.FILE.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH\:mm\:ss} %C{8}@(%F\:%L)\:%m%n